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Image requirements for the Motion detection and its sub-tools

Requirements for the operation of the Motion detection and its sub-tools are given in the table:

Camera
  • Camera shake must not result in image offsets greater than 1% of the frame size
Lighting
  • Moderate lighting. In conditions of insufficient (night) or excessive lighting (light-striking), the quality of analytics performance can decrease
  • No abrupt changes in lighting
Scene and camera angle
  • Moving objects are visually separable from each other
  • The background is mostly static and doesn't change abruptly
  • Moving objects are minimally obscured by static objects in the scene (columns, trees, and so on)

  • Analytics may not work correctly if:

    • the analyzed scene have reflective surfaces and sharp shadows from moving objects

    • there are extended monochromatic objects in the frame

Some requirements depend on whether you use the Motion detection only or its sub-tools (see Standard detection sub-toolsdetectors). The difference in requirements is shown in the table:

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